My 2 cents on the article
I have seen this article years ago and since then I always check to see
the rubber valve on the filter. I don't remember if it stated it, but
for an example: Look at a Fram filter and the Fram Tough Guard filter.
The Tough Guard has a 'anti drain back valve", so when you shut the car
back off, the oil that might be in the process of being clean does not
drain back into the pan.....well that's what I like to think..but it
allows the filter to retain oil when your vehicle is turned off so your
engine benefits from a filter full of oil at startup.
I buy a couple of brands and that is what I look in a filter, because it
does make sense. Ya you can talk about a filter being cheap etc., but
you should consider this in the construction of the filter. I do buy
Purolator filters because of the gasket and I think Allied Corporation
as the store brand soda at the local supermarket. :)
Steve R.
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